By Herbert Lash NEW YORK (Reuters) – The dollar fell on Wednesday as U.S. Treasury yields slid on fears the U.S. economy could slide into recession after Federal Reserve Chair Jerome Powell said higher rates are painful but are the means the U.S. central bank has to slow inflation. The Fed is not trying to engineer a recession to heel inflation but is fully committed to bringing prices under control even if doing so risks an economic downturn, Powell said at a hearing of the U.S. Senate Banking Committee. “Higher interest rates are painful, but it’s the tool we have to bring down inflation,” P…